It contains the most easily available element on earth, which is widely distributed in nature and mainly exists in the form of compounds in the ores that make up the earth's crust. Have you guessed the name of this element and the liquid in the picture now? It is a universal fluid synthesized from silicon ore through multiple processes - dimethyl silicone oil!
Dimethyl silicone oil is odorless and non-toxic, has physiological inertness, good chemical stability, electrical insulation and weather resistance, wide viscosity range, low freezing point, high flash point, good hydrophobicity, and high shear resistance. It can be used for a long time at a temperature of 50 to 180oC.

To say that silicone oil is omnipotent is not just to say it casually, because silicone oil is colorless and transparent, has a high flash point, is safe, environmentally friendly and non-toxic, and has excellent insulation performance, lubrication and flow properties, which gives it a very wide range of uses: electronic appliances, building materials , motor manufacturing, textile, printing and dyeing, finishing of various textiles to improve smoothness and elasticity, as well as fields such as medicine and health, aviation scientific research and military technology.

Silicone oil can be used directly or processed into emulsions widely used in daily chemical, textile, rubber and plastic industries through various emulsification processes.

Regarding silicone oil, please view details:
https://www.siliconefoam.net/product-hydroxyl-silicone-oil-for-fumed-silica-iota-1203d-.html